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0. SOHLUNDZi; P. PETRY.

I oscx'nnuma PUMP. V

Patented Sept. 19,1882.

INVENTOR M 4.1,

N, Pzrzns. PhotwLilhagraphnr. Wminmn. a, c

I A 85a WITNESSES:

UNITED STATES QPATENT' Gimme.-

QARL SUHLUNDAND PETER PETRY, OF NEWARK, NEW JERSEY.

OSCILLATING PUM P.

SPECIFICATION formingpart of Letters Patent No. 264,571, dated September 19, 1882.

- Application filed July 11,1ss2. (No model.)

.To all whom it may concern:

Be it known that we, CARL SGHLUND and PETER PETRY, both of Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Oscillating Pumps, of which thefollowing is a specification.

This invention has reference to unimproved oscillating pump, which has the advantage that it may be connected with two different sources of supply-such as, for instance, a cistern and well or with a hot and cold water reservoir-so as to pump water from either one or from both at the same time, as required;

and the invention consists ofa pumpcylinder witha detachable head, of an interior oscil.

lating piston having a hinged valve at each side of the center shaft, of a fixed diaphragm or partition below the journalbearing of the piston-shaft, and of auxiliary valves and valveseats below the oscillating piston, said parts working in combination with two suctionpipes of the detachable head, one at'each side of the partition, and with a discharge-pipe at -to the use of the pump.

the upper part of the cylinder.

In the accompanying drawings, Figure 1 represents a front elevation of our improved oscillating pump. Fig. 2 is a vertical section on a plane at right angles to the axis of the pump. Fig. 3 is a side elevation, partly in section, through the detachable head; and Fig. 4 is a vertical transverse section of the'same,shown with the head removed.

Similar letters of reference indicate-corresponding parts. I

Referring to the drawings, A represents the exterior pulnp-cylinder of our improved oscillating pump, which cylinder is supported on a frame of any suitable construction, according The cylinder A is preferablycastinonepiece with the rear head, A,while the front head, A ,is tightly screwed to a circumferential flange of the cylinder A.

To the center shaft or spindle, B,-ot' the pump is applied an oscillating piston, B, that is ground off at the ends, so as to fit tightly the interior surface of the cylinder A without any packing. The piston Bis oscillated by a bandie, B which is attached to the outer end of the spindle B, the inner tapering or roundedoff end of which is supported on an indentation or seat 6f the front head, A The shaft B turns in a bearing of the rear wall of the cylinder A, which bearing is arranged with a suitable stuffing-box to prevent the escape of water. The oscillating piston- B is provided at each side of the shaft and pivoted valves 5.

Below the bearing of the piston-shaft is arranged a fixed vertical partition, G, from which extend at each side thereof inclined auxiliary valve-seats I), the openings at of which are closed by pivoted metallic valves d.

The front head,A ,is provided with two suction-pipes, E, which are connected thereto in such a manner as to communicate with the spaces below the valve-seats D at each side of the partition 0. The suction-pipes E are arranged-with suitablestop-cocks, so that on opening either one or both stop-cocks the pump may be worked so as to draw water through either one or both pipes at the same time.

A discharge-pipe, F, is applied to the upper part of the front head, A and communicates with the interior space at the upper part of the cylinder, it being preferably provided with a small vacuum-chamber,'E,'so as to keep up aregular discharge of water. As both the suction-pipes'E and the discharge-pipe 1* are applied to the detachable head A of the pump,

the interior parts of the pump can be readily reached for cleaning or repairing.

Our improved pump is specially adaptedfor domestic purposes, as therebywater may be supplied from two different sources, whatever with an opening, 1),

their distance from each other, either from oscillating pumps with a fixed transverse partition, to which fe.'tures we therefore lay no claim. I

Having thus describedour invention, we

IOO

claim as new and desire to secure by Letters eating with the space above the piston, all Patentsubstantially as set forth.

The combination of a pump cylinder, A, In testimony that we claim the foregoing as having an interior valved. oscillating piston, our invention we have signed our names in 5 B, anxiliaryinolined valve-seats D, and valves presence of two subscribing witnesses.

d, a fixed transverse partition, 0, vertically CARL SOHLUND. below the journal-bearing of the piston-shaft, PETER PETRY. and a removable front head, A having snc- Witnesses:

tion-pipes E E, one at each side of the fixed CARL KT'JHNE,

1o partition, and a discharge-pipe, F, commnni- DANIEL LAUGK. 

